Stop device



Sept. 13, 1927.

J; MANOFSKY 9 STOP DEVICE.

" Filed Nov. 26. 1923 4Sheets-sheet 1 ll u Sept. 13;'1927. 1,642,422

J. MANOFSKY STOR DEVICE Filed 26, 1923 -4 Sheets-Sheet 3 ,Jo y m 6%, (95 Patented Sept. 13, 1927 MANorsKY, or ARRENQOHIO, AssIGrToR rYOUNGSTOWN rnnssnn STEEL 'ooMrAnY; or'WAnREn, (mm, A 'conronnrron'or'onro.

swor DEV-ICE.

A pncanonn ea: November as, 192st. Serial 617,022.

a The present invention relatesto improvements in stop devices, and;more particu:

larly to such devices when used in GOI1HC- tion; with operatingmechanism,- such as slit-- 6 ters=,., cutters andv the like, operativeupon buckling oildlscharged sheets, :or' other mischance', to: stop theoperation of the opera-tr;

ing devices and also tona-u-se any additional sheets o'r blanksdischarged:therefrom to} be ,10 thrown out. of the normal path ofdischarge The: invention will be fully} understood from thefoll0wingdescription, illustrated by the accompanying drawingsin'Wh-ich:

Figure l is aplan viewfioi: a. device embodying the present inventionshowing; the

work operating means, feeding means there- .;fozz and. the device of1the. present invention in the discharge path from the operatingdevice; a a v v '20 Fig, 2. is-a verticalsectional View on theline:-22-otFi-g. 1;

is aplan view, on somewhat enlarged scale of the discharge table;

Fig. l is. vertica-lfsectional view on the 'line41otFi-g3;

F'1g, 5 1s asectional view corresponding to' Fig 4:;and showingthedevice as set in operation by a buckledshe'et" or blank;

Fig, 6 is a transverse sectional view on the line 6. at Fig. 3;"

FigflZ is a diagrammatic view showing I the control means for the workoperating device takenpartly on line 7 of; Fig.8;and

-J ,Referringmore particularly to the draw? .Eig,-8 is a sectionalviewon the line 8: of.

" ings, the operating Ineansin connection with:-

which the'present invention-is. shown may suitably beta pair of rotatingslittingcutters 10 mounted in a framell, for, exa1n-ple ,ot the typeshown in theco-pending applica-v t-ion: oil W. lMGalbreath, Serial- No.6133674: filed January 9, 1923. Thecutters may be driven; in anysuitable manner, for. example,

by a: train of gears-12 from a'shatt 13 which;

H turn is driven'froma pulley 145through ama netic clutch 15 -(see Figs.land 7);

The-pulley 14 :is driven from a; motor 16, which also-drives a directcurrent generator 17, which supplies current to the collector! rings:15"-*= and l5 of the magnetic clutch v The-circuit between the,generator 11; and the;

magnetic clutch is controlled by a push-- button switch 18; of anordinary type o'f-e construction and having the control pushbuttons 19and 20.1 The disposition and opera-tinn of this switch will be morefully hereinafter referred to.

The metalblanks to be operatedupon by the cirtte-rs 10- are fed alongafeed: table 21 through feeding rolls- 22, 23 and the control rolls24,25: to: afeed guide 26,'by whichthey are. directed. between thecutters 10-. In the drawings there arefillustrated'feeding and i 1 feedcontrol. means substantiallysimilar to those shownin my co-pendingapplication Serial No.- 67'E,02l, filed of evendate here-- with,although it is readily apparent that any other suitable feeding devicemay be employed. V v

' The sheetmetal blanks pass between the cutters 10,.by which they arecut or slitted,

and pass out between strippers 27 to a dis charge table 28 having sideguiding rails 29;

At this end; nearest the cutters the discharge table 28 is provided witha fixed cover portion 30, below which the discharged blank passes.=Tothis fixed-cover portion is secured an upwardly projecting lug 31; inwhich'is-mounted a spring-pressed plunger lel to thedischarge pass.Beyond the cover portion 30 there is supported upon theside rails29 amovablelcover portion, suitably formed: in two sections 33 and 34,pivoted together on a transverse pivotal line, as at 35, along whichline this cover portion can be flexed. 'The rear section 33-is bent toform a concave or tent-like, upwardly projecting portion 36- having anopening 37' v 4 32,, preferably extending substantially paral-" whichmay suitably be .iforwardl y directed.

Rodsor bars. 38 are inserted in the cover section 33 in the plane of itsundeforr ed portion and. extend longitudinally of the table. Near itsrear end, an angle iron 39. is

secured to the movable cover section 33' and this angle iron is normallyengaged by the spring pressed plunger 32, holding the mov-f ahlecoversections 33 and- 34. in their proper, 1

positions, as shown in Fig. 4;; The emova-ble-t section 34' is providedat its end-with a beveled bar 40' which engagesia co operating beveledbarAl. mounted on a fixed cover plate I 423 on. the. feed; table 28beyond the movable cover sections 3 and ill. In normal operation, themovable cover sections 33 and B l (together with the rods 88) lOllll acontinuous guiding cover with the fixed cover portions Ell) and i2 oithe :teed table. This is best shown in Fig. st, and, as illus trated, itreadily apparent that a blank discharged from the cutters 10 Will p:along the feed table 28 unimpeded.

Ifthe movement of a discharged blank is impeded at some point, it tendsto buckle and this buckling will normally take place Where it meets theleast resistance, which is at the position where it is covered or guidedonly by the sections and 34; of the movable cover portion. The bucklingof the sheets or blank, as indicated in Fig. 5, tends to flex this coverportion, raising the ele ments 3% and 53st and causing their relativepivotal movement at the counectin pivot 35. The moment pivotal movementtakes place at this point, the spring pressed plunger 82 adds its forceto aid the movement of the parts 33 and 3-1. The cover plate 3 movesupwardly, and a projecting lug 43, secured to its side, engages a roller-14; mounted on the bentlever l5 causing its outward movement. Thismovement 0'? the lever 45, which is held in its normal position by thecoiled spring alt is transmitted through the spring pressed plunger t?to the nislnlmtton 19 of the switch 18. This breaks the circuit betweenthe direct current generator 17 and the magnetic clutch 15 on the cutterdrive shaft 1%.) as shown in Fig. 7, and the operation oi. the cuttersit) is stopped. It, For

any reason, another blank should be fed to the discharge table 38 a [torthe movable cover sections 323 and ill; have been raised, its front endwill engage the cover section ill, raising it to the pe. ion showniudotted lines in Fig. 5, and will pass out above the discharge table.

After the obstruction to the movement of the blank has been renamed, andthe blank itself, it necessary, the cover sections :33 and 34; may be:torced down into their normal po sition, in which they are held by thespring pressed iilunger 32.

Although the present invention has been described in connection with thedetails ot a construction embodying it, it is not in tended that thesedetails are to be regarded as limitations upon the scope of theiuventron, except in so far as included in the ac companying claims.

mamas sheet: metal blanks, a discharge table having spaced IiXed coverportions, a ren'iovable cover portion therebetwcen, said removable coverportion being :tormed of sections connected on a transverse line, springpressed means acting substantially parallel to the discharge pass forholding the removable cover portion in alignment with the lixed coverportions, and means operable 011 flexnre of the sections of theremovable cover portions on their connecting line to stop the operationoi the blank handling device.

3. In. combination, a device for handling sheet metal blanks, adischarge table having spaced lined cover portions, a removable coversection thercbetween, said removable cover portion being formed ofsections connected on a transverse line, spring pressed means actingsubstantially parallel to thedischarge pass for holding the removablecover portion in alignment with the fixed cover portions, a laterallyprojecting'lug on one ot the sections 01 the removable cover portionsnear the transverse line of connection oi said sections, and meansengaged by said projecting lug on fiexure of the remov able coverportion to stop the operation of the blank handling device.

l. In combination with a device for hantion initiated by the buckling ofthe sheet and means operable by the flexing movement of the remo *ablecover portion to stop the operation oi the blank handling device.

5. In combination with, a device for handling sheet; metal blanks, adischarge table having spaced lixed cover portions, a removable coverportion tberebctween, said removable cover portion having a plurality ofsecti one pivotally connected on a transverse line, an up 'ardlydirected lug on one of said cover sections, and a spring pressed plungermounted on a tixcd cover portion and normally engaging said lug to holdthe said rell'lOVllblt} cover portion in alignment with the tixed coverportion. g

(l. A discharge table for sheet metal blanks having spaced lixed coverportions, a movable cover portion t'hcrebetween, said movable coverportion being 'l'orn'ied of sections connected on a transverse line andspring pressed means acting substantially parallel to the discharge passfor holding the movable cover portion in alignment with the fixed coverportions and to aid flexure of the dling sheet metal blanks, a dischargetable 1 having spaced tixed cover portions, a removable cover portioninitiated by the buckling of a blank. I a V 7. A discharge table forsheet metal blanks having spaced fixed cover port-ions, a mov- 5 ablecover portion therebetWeen capable of beingfleXed and spring pressedmeans actsecond blank out 0 ing substantially parallel to the dischargef the discharge pass.

JOHN MANOFSKY.

pass for holding the movable cover portion in alignment With the fixedcover portion and to aid its flexure on buckling of a blank, the fiexureof the movable cover portion providing an opening for the movement of a

